Dental instrument



FIG. 1 is a front elevation of a dental instrument showing my new design, the other sides being identical;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation of a modified embodiment of the design shown in FIGS. 1 through 3, the other sides being identical;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for dental instrument, as shown and described. 